Galaxy S8+ - Samsung Galaxy S8+ Questions & Answers

I need a solution. My Galaxy S8+ recovery efs mount failed(invalid argument) shows error always and for this whenever i flash official rom with odin, it passes successfully but after restart it keeps stuck on first logo, it doesn't continue after logo android sometimes it passes to recovery mode auto.. Is there anyone who can help me solve this would be really greatfull...

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Bootloop? Please help

My s8+ phone is stuck in a loop and i cant seem to fix it. The model is an SM-G955U. It is currently stuck with a screen flashing 'installing system update' and a black screen. I've tried to boot into recovery mode but all attempts have failed(gives failed to open recovery cause no file or such directory). Am i completely bricked? Id like any help that i can get. Thanks.
HelpPlease2121 said:
My s8+ phone is stuck in a loop and i cant seem to fix it. The model is an sm955u. It is currently stuck with a screen flashing 'installing system update' and a black screen. Ive tried to boot into recovery mode but all attempts have failed(gives failed to open recovery cause no file or such directory). Am i completley bricked? Id like any help that i can get. Thanks.
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Download mode, flash stock image from sammobile.com etc with Odin 3.13.1

Help brick Samsung Galaxs S5 Neo SMG903f

Hi,
please helped me I bricked my Samsung Galaxy S5 NEO.
If I want to boot the phone the message "could no do normal boot, Invalid Kernel Length" come.
The same Message if I want to boot in Recovery mode. I can't install a new ROM, because odin doesn't detect the phone with odin.
The problem is caused of I tried to update the TWRP Version of the phone from 3.2.1 to 3.2.3. TWRP wrote that it was successfull, but it don't start since the update.
Please help me.

I cannot enter the download mode of the phone after flashing a TWRP that was not compatible with my Samsung J4 +

My phone won't start, I can't turn it off or go into download mode. Apparently, I flashed the wrong TWRP to my device. I cannot remove the battery as I verified in some tutorials, the battery is attached with the cell phone. What should I do now? Wait for my phone to download and flash the correct TWRP to my phone or is there another method to get out of this loop screen? Remembering that "Recovery is not seandroid enforcing" appears to me. Can someone help me?
This is duplicate to that thread:
Stuck at "Recovery is not seandroid enforcing", can't boot into download mode. J4+
first, i apologize for my english. English is not my primary language. Well, I've been trying to root my J4 +. I think I flashed a TWRP that is not compatible for my device model and now it is restarting constantly. The TWRP home screen appears...
forum.xda-developers.com

Question How to fix Samsung note 5 (SM-N920C) (E: failed to mount / efs (invalid argument) error with FRP lock on.

Hi Please help! I recently tried to unroot my galaxy note 5 (SM-N920C) but got an FRP lock once the device restarted. After watching some tutorials I managed to bypass the FRP lock by flashing the stock firmware, but then started getting this error (NOT REGISTERD TO NETWORK) when I tried to make a call. Now after trying different solutions to fix the network issue my device can't boot past the Samsung logo and displays (E: failed to mount / efs (invalid argument) error in the recovery mode.
I have searched for solutions but most suggest I flash TWRP via odin but that can happen since the FRP lock
is back on and my device can't boot so I cant remove my account manually. If anyone knows how to fix
this please help.
You can use odin or any software and install stable rom. This can flash stock rom. You need partition information table. You can get it from same Samsung model using adb shell.

I am stuck at unlocked bootloader warning screen (Samsung m21)

My phone suddenly stopped working and after a reboot i got stuck at the unlocked bootloader screen . It says to press the power button to boot but nothing happens. So I flashed stock firmware using odin v3 but the same issue. I tried fixing the partitions in twrp recovery but it gives me an error saying " Failed to mount metadata - invalid argument. So lastly I used Odin PIT flash with rewrite partition but it still stuck at warning screen I only able to access Recovery mode and download mode . Does anyone have a solution ? Please help

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